1022221757868 has 24 divisors (see below), whose sum is σ = 2385201681072. Its totient is φ = 340738074624.

The previous prime is 1022221757839. The next prime is 1022221757941. The reversal of 1022221757868 is 8687571222201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022221757868.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165296 + ... + 2594792.

It is an arithmetic number, because the mean of its divisors is an integer number (99383403378).

Almost surely, 2^{1022221757868} is an apocalyptic number.

It is an amenable number.

1022221757868 is an abundant number, since it is smaller than the sum of its proper divisors (1362979923204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022221757868 is a wasteful number, since it uses less digits than its factorization.

1022221757868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627841 (or 627839 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 51.

The spelling of 1022221757868 in words is "one trillion, twenty-two billion, two hundred twenty-one million, seven hundred fifty-seven thousand, eight hundred sixty-eight".